Tracklist
| What’s So Different | 3:57 | |
| What’s So Different (Instrumental) | 3:58 | |
| What’s So Different (Acapella) | 3:40 |
Versions
| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| What’s So Different (12") | 550 Music | BAS 41673 | US | 1998 | |
| What's So Different? (12") | Epic | 667052 6 | US | 1999 | |
| What's So Different? (12", Maxi) | 550 Music | 666782 6 | Netherlands | 1999 | |
| What's So Different? (12", Promo) | Epic, Epic | XPR 3305, xpr3305 | UK | 1999 | |
| What's So Different? (CD, Maxi) | 550 Music | 666782 2 | US | 1999 | |
| What's So Different? (CD, Single, Promo) | Epic | SAMPCS 6483 | Austria | 1999 | |
| What's So Different? (CD, Single, Promo) | Epic | XPR 2324 | UK | 1999 |